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Published on: June 25, 2013
[Effects of cervical plexus block on lung ventilation].
Jarosław Wośko1, Sławomir Sawulski, Wojciech Dabrowski
1I Klinika Anestezjologii i Intensywnej Terapii, Uniwersytet Medyczny w Lublinie. anest@am.lublin.pl
Cervical plexus block for carotid endarterectomy moderately depresses respiratory function but does not impair gas exchange. Transient diaphragm paralysis is a possible complication, occurring in both Winnie and Moore techniques.
Area of Science:
- Anesthesiology
- Neurosurgery
- Pulmonology
Context:
- Carotid endarterectomy is crucial for preventing embolic stroke.
- Maintaining brain perfusion and consciousness during surgery is essential.
- Regional anesthesia, specifically cervical plexus block, is preferred for this procedure.
Purpose:
- To compare the effects of two cervical plexus block techniques (Winnie and Moore) on respiratory function.
- To evaluate spirometry, oxygen saturation, and carbon dioxide tension post-block.
- To assess the incidence of diaphragm dysfunction following each technique.
Summary:
- Both Winnie and Moore cervical plexus block techniques led to decreased spirometry values (VC, FVC, FEV1, PIF) in patients undergoing carotid endarterectomy.
- No statistically significant differences in respiratory parameters were observed between the two techniques.
- Transient unilateral diaphragm paralysis occurred in a notable percentage of patients in both groups, without affecting overall gas exchange.
Impact:
- Cervical plexus block causes moderate respiratory depression but preserves gas exchange during carotid endarterectomy.
- The study highlights transient diaphragm paralysis as a potential complication, irrespective of the block technique used.
- Findings inform anesthetic choices and patient monitoring during this critical surgical procedure.
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